a property was originally on a 99 years lease and two thirds of the time passed is equal to the

45 years
If time passed=x & time to come=y,then x+y=99 ---(i) and
(2/3)x=(4/5)y, 5x=6y ---(ii)
Solving (i) & (ii),x=54,y=45
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let time to come to x.time passed b 99-x
2/3(99-x)=4/5(x)
by solving,x=45
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Ans:-45
let, time passed=t;
so, 2/3*(99-t)=4/5*(t)
=>t=45
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Friends try to solve using options sometimes its quicker and helps a lot....
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Let x be the time passed
Than (99-x) will be the time remaining

According to condition given the question:
(2/3)x=(4/5)*(99-x)

On solving:
x=54

Thus time remaining is:
99-x=99-54=45-->Answer
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a property was originally on a 99 years lease and two thirds of the time passed is equal to the four fifth of the time to come.how many years are there to go.

a) 45
b) 50
c) 60
d) 55